EP2306882A2 - Lave-vaisselle présentant un système de séchage par sorption - Google Patents

Lave-vaisselle présentant un système de séchage par sorption

Info

Publication number
EP2306882A2
EP2306882A2 EP09781153A EP09781153A EP2306882A2 EP 2306882 A2 EP2306882 A2 EP 2306882A2 EP 09781153 A EP09781153 A EP 09781153A EP 09781153 A EP09781153 A EP 09781153A EP 2306882 A2 EP2306882 A2 EP 2306882A2
Authority
EP
European Patent Office
Prior art keywords
sorption
container
dishwasher according
air
flow
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP09781153A
Other languages
German (de)
English (en)
Inventor
Helmut Jerg
Kai Paintner
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
BSH Hausgeraete GmbH
Original Assignee
BSH Bosch und Siemens Hausgeraete GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from DE102008040789A external-priority patent/DE102008040789A1/de
Priority claimed from DE200810039900 external-priority patent/DE102008039900A1/de
Priority claimed from DE102008043581A external-priority patent/DE102008043581A1/de
Application filed by BSH Bosch und Siemens Hausgeraete GmbH filed Critical BSH Bosch und Siemens Hausgeraete GmbH
Publication of EP2306882A2 publication Critical patent/EP2306882A2/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L15/00—Washing or rinsing machines for crockery or tableware
    • A47L15/42—Details
    • A47L15/48—Drying arrangements
    • A47L15/481—Drying arrangements by using water absorbent materials, e.g. Zeolith
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L15/00—Washing or rinsing machines for crockery or tableware
    • A47L15/0018—Controlling processes, i.e. processes to control the operation of the machine characterised by the purpose or target of the control
    • A47L15/0021—Regulation of operational steps within the washing processes, e.g. optimisation or improvement of operational steps depending from the detergent nature or from the condition of the crockery
    • A47L15/0026—Rinsing phases
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L15/00—Washing or rinsing machines for crockery or tableware
    • A47L15/0018—Controlling processes, i.e. processes to control the operation of the machine characterised by the purpose or target of the control
    • A47L15/0021—Regulation of operational steps within the washing processes, e.g. optimisation or improvement of operational steps depending from the detergent nature or from the condition of the crockery
    • A47L15/0034—Drying phases, including dripping-off phases
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L2301/00—Manual input in controlling methods of washing or rinsing machines for crockery or tableware, i.e. information entered by a user
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L2501/00—Output in controlling method of washing or rinsing machines for crockery or tableware, i.e. quantities or components controlled, or actions performed by the controlling device executing the controlling method
    • A47L2501/04—Water pressure or flow rate
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L2501/00—Output in controlling method of washing or rinsing machines for crockery or tableware, i.e. quantities or components controlled, or actions performed by the controlling device executing the controlling method
    • A47L2501/06—Water heaters
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L2501/00—Output in controlling method of washing or rinsing machines for crockery or tableware, i.e. quantities or components controlled, or actions performed by the controlling device executing the controlling method
    • A47L2501/07—Consumable products, e.g. detergent, rinse aids or salt
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L2501/00—Output in controlling method of washing or rinsing machines for crockery or tableware, i.e. quantities or components controlled, or actions performed by the controlling device executing the controlling method
    • A47L2501/30—Regulation of machine operational steps within the washing process, e.g. performing an additional rinsing phase, shortening or stopping of the drying phase, washing at decreased noise operation conditions

Definitions

  • the present invention relates to a dishwasher, in particular domestic dishwasher, with at least one washing container and at least one sorption drying system for drying items to be washed, wherein the
  • Sorptionstrocknungssystem at least one sorption container (SB) with reversibly dehydratable sorption drying material, which is connected for the passage of air flow through at least one air duct with the washing compartment.
  • SB sorption container
  • DE 103 53 774 A1, DE 103 53 775 A1 or DE 10 2005 004 096 A1 disclose dishwashers with a so-called sorption column for drying dishes.
  • humid air from the washing compartment of the dishwasher is passed through the sorption column by means of a blower and moisture is withdrawn from the air through it by means of its reversibly dehydratable sorption drying material
  • For regeneration ie desorption of the sorption column their reversibly dehydratable sorption drying material is heated to very high temperatures.Water stored in this material thus emerges as hot water vapor and is conducted into the rinsing container by means of an airflow generated by the blower.
  • Such a sorption column has proven to be very advantageous for energy-saving and quiet drying of the dishes t to prevent local over
  • Sorption drying material in the desorption process is e.g. in DE 10 2005 004 096 A1, a heater in the flow direction of the air is arranged in front of the air inlet of the sorption column. Despite this "air heating" during desorption, it remains difficult in practice to always sufficiently and properly dry the reversibly dehydratable dry material.
  • the invention has for its object to provide a dishwasher, in particular domestic dishwasher, which improved in practice Sorption and / or desorption for the reversibly dehydratable
  • Sorptionstrocknungsmaterial in the sorption of their Sorptionstrocknungsvoriques allows in a simple and reliable manner.
  • the sorption can be particularly compact and space-saving form due to its specific flow characteristics and still accommodate the required for proper sorption and desorption amount of Sorptionstrocknungsmaterial in the sorption.
  • This geometry shape of the sorption container also makes it possible, in particular, for the original or initial sorption and / or desorption behavior of the sorption unit to be largely retained if the layer volume of the sorption drying material in the sorption unit is compressed, ie deposited, during the service life of the dishwasher due to its own weight and thus loses height. Due to the advantageous flow direction specification of the sorption container substantially in or counter to the direction of gravity with air, in particular in the vertical direction relative to a substantially horizontal
  • Penetration surface of the sorption interfere with any such material settlements of the sorption drying material in terms of functionality, i. in particular moisture, preferably water absorption capacity, and moisture, preferably water delivery, of the sorption hardly or not at all.
  • the functionality of the sorption drying system is therefore still ensured.
  • For in the construction according to the invention can be based on a substantially horizontal penetration surface of the sorption at each point preferably in about the same layer, in particular bulk ratios, and thus about the same flow conditions or associated flow resistance conditions over the product life of
  • the sorption unit can be arranged in the sorption container such that the total volume, in particular bulk volume, of its sorption drying material can be flowed through from the rinsing container substantially in the vertical throughflow direction counter to the direction of gravity.
  • the originally predetermined layering, in particular bedding ratios of the sorption drying material at all locations of the inlet cross-sectional area of the sorption unit also remain after any Material deposition during the life of the dishwasher substantially obtained.
  • the volume of the sorption drying material at any location downstream of the inlet cross-sectional area of the sorption unit may advantageously have substantially the same layer height, even if material settling occurs over time.
  • largely homogeneous or similar flow conditions are always ensured relative to the respective passage cross-sectional area of the sorption unit, which favors or facilitates the respective sorption and desorption.
  • Sorptionstrockner material is present. Indeed, due to such undesirable, uneven sorption drying material distribution across the flow area of the sorption unit, e.g. their sorption efficiency, desorption efficiency, and material aging are impaired.
  • the sorption container can be designed and arranged as a throughflow channel such that its throughflow space is predetermined to have a substantially vertical throughflow direction. It can advantageously form for the air flowing through in particular a chimney-type drying device with a vertical main pull-through direction in the respective sorption process or a chimney-type heating device with a vertical main pull-through direction during the respective desorption process.
  • the sorption container may be substantially pot-shaped, tubular, sleeve-shaped, or cylindrical. These geometric shapes are compact and facilitate the accommodation of the sorption and possibly of one or more other components such as a heating device or Flow conditioning elements.
  • the sorption unit viewed in the vertical direction, may have one or more side walls or sheaths around the interspace of its lower inlet cross-sectional area and its upper exit cross-sectional area arranged therefrom at predetermined height spacing, which run partially or completely in particular in a substantially vertical positional plane.
  • the respective casing around the outer circumference of the sorption unit can in particular also be formed by one or more wall parts of the inner casing of the sorption container alone, which surrounds the sorption unit all around.
  • the outer surface of the sorption drying material of the sorption unit is advantageously predefined, which extends in the vertical direction between its lower air inlet cross-sectional area and its upper air outlet cross-sectional area arranged at a predeterminable height distance therefrom.
  • the sorption container can advantageously have a substantially horizontally arranged base part and a substantially horizontally arranged cover part. This allows the different elements or components of the
  • Sorption container can be assembled in a simple manner.
  • the sorption unit and / or optionally a heating device arranged in advance in the sorption container form a substantially vertically oriented or upright sorption column.
  • a substantially vertically aligned sleeve or cylinder shape of the sorption container may be expedient.
  • the sorption drying material fills in the sorption of the sorbent container for a further expedient development, in particular a bulk volume largely completely, which is arranged between the substantially horizontal
  • Flow inlet cross-sectional area and the largely parallel flow outlet cross-sectional area is located.
  • at least one substantially horizontally arranged, lower air-permeable bottom element is provided as part of the sorption unit, on which the sorption drying material is stored.
  • the housing of the sorption container forms advantageously at the same time a peripheral side coating around the air-permeable bottom element such that the Sorptionstrocknungsmaterial on the air-permeable bottom element with a desired layer or Schütt Too laterally edged and held.
  • the sorption unit can also have its own side casing or casing, ie in general terms one or more housing side walls, in addition to its outer circumference.
  • At least one substantially horizontally arranged, upper air-permeable ceiling element may expediently be provided as part of the sorption unit at a desired layer height from the lower air-permeable bottom element.
  • the sorption unit of the sorption container may have at least one lower, essentially horizontally arranged sieve element or grid element as an air-permeable bottom element and at least one upper, substantially horizontally arranged sieve element or grid element as an air-permeable ceiling element at a predetermined height distance from one another.
  • the volume of space between these two substantially horizontally arranged sieve elements or grid elements and the lateral housing shell of the sorption container is expediently largely completely filled with sorption drying material. As a result, a desired storage and distribution of the sorption drying material over the entire service life of the dishwasher can be reliably maintained in a defined manner.
  • this makes it possible to ensure that the sorption drying material can be stored on the bottom air-permeable bottom element with approximately the same, ie constant layer thickness or bulk thickness, at all air entry points of the inlet cross-sectional area of the sorption unit.
  • it is advantageously possible to set a substantially homogeneous, uniform flow resistance at every point of the inlet cross-sectional area of the sorption unit.
  • a sorption unit or sorption column is thereby formed, which allows for compact dimensions a proper recording of a certain amount of water to be dehumidified air at each Sorptionsvorgang and at the same time a perfect, largely complete expulsion of this stored water energy efficient in the next desorption.
  • FIG. 1 shows schematically a dishwasher with a washing container and a sorption drying system whose components are designed according to the construction principle according to the invention
  • Fig. 2 shows a schematic perspective view of the open
  • washing container of the dishwasher of Figure 1 with components of the sorption drying system, partially uncovered, ie without
  • Fig. 3 in a schematic side view of the entirety of
  • Sorptionstrocknungssystems of Figure 1, 2 the components are partially housed on the outside of a side wall of the washing and partly in a floor assembly below the washing container,
  • FIGS. 1 to 3 shows in each case as a detail schematically in a perspective exploded view various components of the sorption container of the sorption drying system of FIGS. 1 to 3;
  • FIG. 5 is a schematic plan view of the sorption container of FIG. 4;
  • Fig. 6 seen in a schematic plan view from below as a component of
  • Fig. 7 seen in a schematic plan view from below as another
  • Tube coil heater of Figure 7 which is disposed above the slot plate of Figure 6,
  • Fig. 9 in a schematic sectional view viewed from the side of the
  • Sorption container of Figures 4, 5, 10 is a schematic perspective view of the internal structure of the
  • Fig. 11 in a schematic plan view from above the entirety of the components of the Sorptionstrocknungssystems the
  • Fig. 15 in a schematic sectional view seen from the side of the
  • FIG. 17 is a schematic illustration of the thermoelectric heat protection of the sorption container of FIGS. 4 to 10 of FIG.
  • FIG. 1 shows a schematic illustration of a dishwasher GS, which has as main components a rinsing container SPB, a base assembly BG arranged underneath, and a sorption drying system TS according to the design principle according to the invention.
  • the sorption drying system TS is preferably provided externally, ie outside the washing container SPB, partly on a side wall SW and partly in the bottom assembly BG. It comprises as main components at least one air duct LK, at least one fan unit inserted in it or a fan LT and at least one sorption tank SB.
  • In the washing container SB are preferably one or more grid baskets GK for receiving and rinsing items such. B. pieces of dishes housed.
  • one or more spray devices such as one or more rotating spray arms SA, are provided in the interior of the rinse container SPB.
  • a lower spray arm and an upper spray arm are suspended in the washing container SPB in a rotating manner.
  • Dishwashers undergo washing programs that have a plurality of program steps for cleaning items to be washed.
  • the respective rinsing program may comprise at least the following individual program steps taking place one after the other: at least one pre-rinsing step by adding
  • rinsing liquor e.g. Fresh water and / or clean service water for the respective pre-wash and / or intermediate rinse
  • at least one cleaner added fresh water and / or service water e.g. for the respective cleaning process, or for the respective intermediate rinsing, and / or added with rinse aid added fresh water and / or preferably clean hot water for a rinse on the respective items to be rinsed.
  • the fan unit LT and the sorption SB are here in the embodiment in the bottom assembly BG below the bottom BO of the washing container SPB housed.
  • the air duct LK extends from an outlet opening ALA, which is provided above the bottom BO of the washing container SBP in the side wall SW, outside of this side wall SW with an inlet-side pipe section RA1 down to the fan unit LT in the bottom assembly BG.
  • the outlet of the fan unit LT is connected to an inlet opening EO of the sorbent container SB, preferably in its region near the bottom.
  • the outlet opening ALA of the washing container SPB is here Embodiment above the bottom BO, preferably in the central region or in the central region of the side wall SW, provided for sucking air from the interior of the washing container SPB.
  • the fan unit LT is preferably designed as an axial fan. It serves for the forced flow of a sorption unit SE in the sorption container SB with moist-hot air LU from the rinsing container SPB.
  • the sorption unit SE contains reversibly dehydrogenatable sorption drying material ZEO, which is capable of taking up and storing moisture from the air LU passed through it, which is sucked in from the rinsing tank SPB by the fan unit LT into the air duct LK and the subsequent sorption tank SB.
  • the sorption SB has in the near-ceiling region of its housing GT on the top of an outflow opening AO (see Figures 4, 5), which is connected via an outlet element AUS through an insertion opening DG (see Figure 13) in the bottom BO of the washing compartment SPB with its interior , In this way, during a drying step of a dishwashing program for drying cleaned items to be washed, moist-hot air LU from inside the
  • Rinse container SPB are sucked through the outlet opening ALA by means of the switched-in fan unit LT in the inlet-side pipe section RA1 of the air duct LK and via the connecting portion VA in the interior of the Sorption container SB for forced flow of reversibly dehydratable
  • Sorption drying material ZEO be transported in the sorption SE.
  • the sorption drying material ZEO of the sorption unit SE draws water out of the moist air flowing through, so that air dried after the sorption unit SE can be blown into the interior of the washing container SPB via the outlet element or outflow element AUS.
  • a closed air circulation system is provided by this sorption drying system TS.
  • the spatial arrangement of the various components of this sorption drying system TS is illustrated in the schematic perspective view of Figure 2 and the schematic side view of Figure 3. In the figure 3, the course of the bottom BO of the washing compartment SPB is additionally shown in dash-dotted lines, whereby the spatial-geometric relationships of the structure of the Sorptionstrocknungssystems TS can be better illustrated.
  • the outlet opening ALA is preferably arranged at a location above the bottom BO, in particular during the respective drying process at
  • Outlet opening ALA advantageously chosen such that for the inlet-side pipe section RA1 of the air duct LK a still increasing distance to the side wall SW and / or back wall is freely available.
  • the outlet opening or outlet opening preferably in the ceiling area, middle area, and / or upper area of the side wall SW and / or rear wall RW of the washing container SPB also largely prevents water from the sump in the bottom of the washing container or from its liquid spraying system through the outlet opening ALA of the washing container SPB during the respective cleaning or rinsing process directly into the air duct LK injected and then can get into the sorbent SB, what otherwise there sorption drying material ZEO inadmissible damp, partially or completely damage or even unusable.
  • At least one heating device HZ for desorption and thus regeneration of the sorption drying material ZEO is arranged upstream of its sorption unit SE in the flow direction.
  • the heating device HZ and the downstream sorption unit SE form a substantially vertical sorption column arrangement.
  • the heating device HZ is used for heating air LU, which can be driven by the fan unit LT through the air duct LK in the sorption SB for the respective desorption process.
  • This positively heated air absorbs the stored moisture, in particular water, from the sorption drying material ZEO as it flows through the sorption drying material ZEO. This expelled from the sorption drying material ZEO water is transported by the heated air through the outlet element AUS of the sorbent SB into the interior of the washing.
  • Desorption process may preferably take place when the heating of the rinsing liquor for a cleaning process or other rinsing process of a subsequent dishwashing program is desired or carried out.
  • the air heated for the desorption process by the heating device HZ which flows through the sorption material of the sorption container, can be used simultaneously for heating the respective rinsing liquid during the respective pre-rinsing or cleaning process in the rinsing container SPB, which saves energy. This type of heating can be done alone or supportive to a conventional water heater.
  • FIG. 2 shows, with the door TR of the dishwasher GS of FIG. 1 open, main components of the sorption drying system TS in the side wall SW and of the base assembly BG partially in exposed state in a perspective view.
  • FIG. 3 shows the entirety of the components of the sorption drying system TS seen from the side.
  • the leading to the fan unit LT, inlet side pipe section RA1 of the air duct LK has starting from the height position of its inlet opening El at the location of the outlet opening ALA of the washing compartment SPB with respect to the direction of gravity rising upward Pipe section AU and then a with respect to the direction of gravity SKR downwardly sloping pipe section AB on.
  • the upwardly rising pipe section AU runs here in the embodiment somewhat obliquely inclined with respect to the vertical direction of gravity SKR upwards and turns into a curved section KRA, which is bent convexly and for the inflowing airflow LS1 a direction reversal by about 180 ° down into the itself subsequent, substantially vertically sloping down tube section AB enforces.
  • the first, upwardly rising pipe section AU, the curvature section KRA, as well as the downstream, second, downwardly sloping pipe section AB form here in the exemplary embodiment a flat channel with a substantially flat rectangular cross-sectional geometry.
  • the rear side and the front side wall of the flat channel extend substantially parallel to the positional plane of the side wall SW of the washing compartment.
  • the rear wall of the flat channel is mounted on the side wall SW and lies there largely flat.
  • one or more flow guide ribs or drainage ribs AR are provided, which follow its curvature profile.
  • a plurality of arcuate drainage ribs AR are substantially nested concentrically with each other and arranged with a transverse distance from one another or with a gap to one another in the interior of the curved section KRA. They extend here in the embodiment in the rising pipe section AU and in the sloping pipe section AB on a partial length.
  • These drainage ribs AR are arranged at height positions above the outlet ALA of the purge tank SPB and the inlet El of the inlet side pipe section RA1 of the air duct LK.
  • These drainage ribs AR serve, in particular during the sorption process, in which steam is present in the rinsing container after the end of the rinsing process, to absorb liquid droplets and / or condensate from the airflow LS1 sucked in from the rinsing container SPB.
  • the liquid droplets collected at the flow guide ribs AR can drip off in the direction of the outlet ALA.
  • the liquid droplets can drip off the flow guide ribs AR in the direction of at least one return rib RR.
  • the return rib RR is at a point in the interior of the sloping pipe section AB provided, which is higher than the outlet opening ALA of the washing container SPB or higher than the inlet opening El of the air duct LK.
  • the return rib RR in the interior of the sloping pipe section AB forms a drainage slope and is aligned with a cross-connection line RF in the direction of the outlet ALA of the washing compartment SPB.
  • the cross-connection line RF bridges the gap between the leg of the upwardly rising pipe section AU and the leg of the downwardly sloping pipe section AB.
  • the cross-connection line RF thus connects the interior of the upwardly rising pipe section AU and the interior of the downwardly sloping pipe section AB with each other.
  • the gradient of the return rib RR and the adjoining, aligned cross-connection line RF is selected such that a condensate return of condensate and / or other liquid droplets that drip down from the gutters AR in the region of the sloping pipe section AB, in the outlet opening ALA of Rinse tank SPB is ensured. As a result, it is not necessary to provide an additional, separate condensate collecting and recirculating device extra to the air duct.
  • the drainage ribs AR are preferably mounted on the inner wall of the air duct LK facing away from the Spül organizationsenwand SW, since this outer side inner wall of the air duct is cooler than the flushing tank SPB facing inner wall of the air duct. At this cooler inner wall condensate precipitates stronger than on the side wall SW facing inner wall of the air duct LK down.
  • the drainage ribs AR are designed as web elements which are of the outer inner wall of the air duct LK only over a partial depth or partial height of the total cross-sectional depth (i.e., perpendicular to the side wall SW this is the total height) of
  • Flow rate can be increased for the respective air mass flowing through. Disturbing Heilverwirbelung are thus largely avoided. In this way, a desired air volume can be promoted by designed as a flat channel L—Eskanals LK.
  • the return rib RR is preferably mounted on the inside of the outer inner wall of the air duct LK as a web element, which protrudes toward a partial depth of the total depth of the flat formed air duct LK towards its inner inner wall. This ensures that a sufficient passage cross-section remains free in the region of the return rib RR for the passage of the air flow LS1.
  • the drainage ribs AR and the return rib RR also serve to separate water droplets, detergent droplets, rinse aid droplets, and / or other aerosols which are in the air LS1 flowing from the interior of the rinsing container and return them into the rinsing container SPB through the outlet opening ALA.
  • This is particularly advantageous in a desorption process, when at the same time a cleaning step or other rinsing takes place with heating of the rinsing liquor liquid. Otherwise, namely, the desorption could be impaired, since the sorption drying material would be made unduly wet or humid by such entrained aerosols and liquid droplets.
  • a relatively large amount of steam or mist can be present in the rinsing container SPB, in particular due to the spraying of rinsing liquid by means of the spray arms SA.
  • a vapor or mist may contain finely distributed both water, cleaning agents, rinse aid and / or possibly other cleaning agents.
  • Deposition apparatus instead of drainage ribs AR, other deposition means, in particular structures with a plurality of edges, such as wire mesh, may alternatively be provided in an advantageous manner.
  • the obliquely upward or substantially vertically rising pipe section AU ensures that liquid droplets or even spray jets, which are sprayed by a spraying device SA, such as a spray arm during the respective cleaning process or other rinsing process, are largely prevented from directly above the sucked air flow LS1 in the
  • Sorptionstrockner ZEO the sorbent SB can get. Without this retention or deposition of liquid droplets, in particular mist droplets or vapor droplets, the sorption drying material ZEO could be rendered inadmissibly moist and useless for a sorption process during the drying step. In particular, it could lead to premature saturation by infiltrated
  • Liquid droplets such as e.g. Mist droplets or vapor droplets come.
  • ascending branch AU of the feedthrough channel and / or the one or more deposition or interception elements in the upper knee area or crown area of the curvature section KRA between the ascending branch AU and the descending branch AB of the feedthrough channel it is thus largely avoided that water droplets
  • Detergent droplets, rinse droplets, mixture droplets thereof, and / or other aerosol droplets beyond this barrier can continue down to the fan LT and from there into the sorption SB.
  • the dishwashing machine in the exemplary embodiment has a drying device for drying items to be washed
  • Sorption by means of reversibly dehydratable Sorptionstrocknungsmaterial stored in a sorption is connected via at least one air duct with the washing container for generating an air flow.
  • the air duct preferably has along its inlet-side pipe section a substantially flat rectangular cross-sectional geometry shape. As a result, it can advantageously be accommodated in a space-saving manner in the space between at least one outer wall of the washing container and an outer housing of the dishwasher.
  • the air duct is considered in the direction of flow preferably after his inlet-side pipe section, which lies above the outlet opening of the washing compartment, in particular into a substantially cylindrical tubular section, with which it opens into the fan unit. It is preferably made of at least one plastic material.
  • the air duct has advantageously at least one upwardly rising pipe section. It extends in particular starting from the outlet opening of the washing upwards. He has advantageously further considered in the flow direction after the rising pipe section at least one downwardly sloping pipe section. Between the rising pipe section and the sloping pipe section preferably at least one curvature section is provided.
  • the curvature section may in particular have a larger cross-sectional area than the rising pipe section and / or the sloping pipe section.
  • one or more flow guide ribs can advantageously be provided for equalizing the air flow. At least one of
  • flow-guiding ribs may extend beyond the curved section into the rising pipe section and / or sloping pipe section.
  • the one or more flow guide ribs are provided in particular in positions above the height position of the outlet of the washing compartment.
  • the respective flow guide rib may extend from the Spül actuallyergeophuse- facing channel wall to the opposite, Spül relieergeophuse- remote channel wall of the air duct to a partial depth or partial cross-sectional width, preferably substantially continuously.
  • at least one return rib in the interior of the sloping tube section on the sewer housing facing channel wall and / or Spül abilityergekoruse- remote channel wall of the air duct LK may be provided at a location which is higher than the inlet opening of the air duct.
  • the return rib may be conveniently connected via a cross-connection line in the space between the descending pipe section and the sloping pipe section for condensate return to the inlet opening of the air duct. It preferably has a gradient to
  • the return rib may face away from the Spül actuallyergeophuse- facing channel wall to the opposite, Spül actuallyergeophuse- Channel wall of the air duct preferably only extend to a partial cross-sectional depth.
  • the sloping branch AB of the air duct LK is introduced essentially vertically into the fan unit LT.
  • the sucked-in air flow LS1 is blown from the fan unit LT on the output side via a tubular connection section VA into an inlet connection ES of the sorption container SB coupled to it in the area near the bottom thereof.
  • the air flow LS1 flows into the lower region of the sorption container SB with an inflow direction ESR, in this case in particular substantially horizontal, and changes into a different, in particular essentially vertical, flow direction DSR, with which it flows through the interior of the sorption container SB.
  • This essentially vertical throughflow direction DSR runs from bottom to top through the sorption container SB.
  • the inlet nozzle ES directs the incoming air flow LS1 into the sorption container SB such that it is deflected from its inflow direction ESR, in particular by approximately 90 degrees, into the throughflow direction DSR of the sorption container SB.
  • the sorption container SB below the bottom BO in the bottom assembly BG of the washing container SPB is arranged largely free-hanging such that it has a predetermined minimum gap distance LSP (see also FIG. 10) with respect to adjacent components and / or parts of the bottom assembly BG for heat protection.
  • LSP minimum gap distance
  • the sorption container SB below the bottom BO in the bottom assembly BG of the washing container SPB is arranged largely free-hanging such that it has a predetermined minimum gap distance LSP (see also FIG. 10) with respect to adjacent components and / or parts of the bottom assembly BG for heat protection.
  • LSP minimum gap distance
  • FRA transport safety element
  • the housing of the sorption container SB has such a geometry that there is a sufficient gap distance as heat protection around the remaining parts or components of the base assembly BG.
  • the sorption container SB for this purpose on its the rear wall RW of the bottom assembly BG facing housing wall SW2 to the inside arched indentation AF, which corresponds to the geometry shape of the rear wall RW of the washing container SPB facing it.
  • the sorption container SB has advantageously at least in the landfill area of its sorption unit SE at least one outer housing AG in addition to its cup-shaped, closed with a lid member inner housing IG such that its overall housing GT is double-walled there. Between the inner housing IG and the outer housing AG thus an air gap clearance LS is present as a thermal insulation layer.
  • Sorption unit i. partially or completely, at least double-walled, an insulation and / or heat radiation protection is additionally or independently provided to its freely suspended storage or accommodation.
  • this further overheating protection measure serves, on the one hand, to adequately protect any neighboring components and components of the floor assembly BG against excessively high overheating or burns.
  • the multi-walledness of the sorption container has the function of avoiding thermal losses of the sorption unit to the environment as insulation, whereby the energy efficiency in the respective desorption process, in which the sorption drying material is heated by means of at least one air heating device for liquid, in particular water drifting, compared to an uninsulated Sorption can be increased.
  • the sorption drying material volume of the sorption unit can be heated more uniformly by the multi-walledness of the sorption container than without heat-insulating means for desorbing, which is more material-saving for the sorption material.
  • Sorption unit SE sheathed in the predetermined transverse gap distance LS.
  • an additional Inner wall to provide in the interior of the sorbent SB in addition to the housing wall IG at least in the sorption SE.
  • the sorption container may of course also be expedient to provide at least one heat-resistant insulating element at least in the positional area of the sorption unit around the outside of the housing of the sorption container and / or on the inside wall of the sorption container.
  • These may be, for example, heat-insulating nonwovens, mats or the like.
  • the sorption container SB is attached to the underside of the bottom BO, in particular in the region of a passage opening DG (see FIGS. 3, 13) of the bottom BO of the washing container SPB. This is illustrated in particular in the schematic side view of FIG. There, the bottom BO of the washing container SPB has, starting from its outer edges ARA, a gradient tapering towards a liquid collecting region FSB. This liquid collection area FSB is in particular the location of the
  • the sorption container SB is mounted on the bottom BO of the washing container SPB in such a way that its lid part DEL extends substantially parallel to the underside of the bottom BO and with a predetermined gap distance LSP to the latter.
  • a coupling connection between at least one bottom-side coupling component, in particular a base SO, the sorbent SB and a bottom-top coupling element, in particular the outlet element OFF, the sorbent SB in the region of a passage opening DG in the bottom BO of the purge SB provided.
  • a coupling connection in particular a clamping connection is provided.
  • the clamping connection can be formed by a detachable connection, in particular screw connection, with or without bayonet closure BJ (see FIG. 13) between the bottom-side coupling component of the sorption container SB and the bottom-side coupling component of the sorbent container SB.
  • An annular rim zone RZ (see FIG. 13) all around the passage opening DG of the bottom BO is located between the bottom underside coupling or outlet component, such as the upwardly projecting pedestal SO on the cover part DEL of the sorbent container SB, and the outlet element or valve above the bottom BO Splash protection component AUS in assembled position State of both coupling components clamped.
  • the bottom BO of the washing container SPB and the bottom-side coupling or connecting component SO are indicated only by dash-dotted lines.
  • the bottom-side connection component SO and / or the floor-top splash protection component AUS projects in each case with its end-side end portion through the passage opening DG of the bottom BO.
  • the bottom-side outlet part has the base SO around the outlet opening AO of the cover part DEL of the sorbent SB.
  • the floor-top splash protection component AUS has a discharge connection AKT and a splash protection cover SH. At least one sealing element DU is provided between the floor-top-side component AUS and the bottom-floor-side component SO.
  • the sorption SB is therefore arranged below the bottom BO of the washing container SPB largely free-hanging so that it has a predetermined minimum gap distance LSP with respect to adjacent components and parts of the bottom assembly BG for heat protection.
  • a transport securing element TRS in a predetermined
  • This transport safety element TRS serves to optionally support the sorption container SB, which is suspended below the bottom BO of the washing container SPB, from below, if, for example, it swings down during transport together with the bottom BO due to vibrations.
  • Transport securing element TRS may in particular be formed by a downwardly U-shaped metal clip which is fixedly mounted on the bottom of the floor assembly.
  • the sorption SB has at the top of its cover part DEL on the outflow opening AO.
  • an upwardly projecting socket SO is attached.
  • a cylindrical base nozzle element STE is mounted (see Figures 4, 5, 9, 13), which projects upwards and serves as a counterpart to the outflow or AKTK. It preferably has an external thread with integrated bayonet lock BJ, which interacts with the internal thread of the Ausblaskaminstutzens AKT accordingly.
  • the base SO has the sealing ring DU on its upper side, concentrically running around the base nozzle STE.
  • FIGS. 3, 4, 9, 13 The sorbent SB is doing with this seal ring DU the bottom of the bottom BO firmly pressed on. It is held by the height of the base SO on clearance LSP from the bottom of the bottom BO. From the top of the bottom BO ago is pushed through the insertion opening DG of the bottom BO of the blow-out nozzle AKT down and bolted to the counter-piece base socket STE and the opening secured by the bayonet lock BJ.
  • the exhaust stack AKT lies around the ring
  • the base SO projects upwards by a base height LSP from the remaining surface of the cover part DEL ensures that there is a gap between the cover part DEL and the underside of the bottom BO.
  • the bottom BO of the washing container SPB runs obliquely inclined, starting from its peripheral edge zone, with the side walls SW and the rear wall RW in the direction of a preferably central liquid collecting region FSB.
  • the pump sump PSU of a circulation pump UWP can be located (see FIG. 16).
  • this bottom BO which tapers obliquely from outside to inside onto the lower collecting area FSB, is shown by dash-dotted lines.
  • the arrangement of the pump sump PSU with the recirculation pump UWP seated therein below the lower collection area FSB can be seen from the plan view image of the floor assembly BG of FIG.
  • the sorption container SB is preferably mounted on the bottom BO of the washing container SPB such that its lid part DEL extends substantially parallel to the underside of the bottom BO and with a predetermined gap distance LSP thereto.
  • the base SO at the the seated socket STE facing the surface normal of the cover part DEL with an appropriate angle of inclination.
  • the sorption container SB has a cup-shaped housing part GT, which is closed by a cover part DEL.
  • the sorption unit SE is provided with reversibly dehydratable sorption drying material ZEO.
  • the sorption unit SE is accommodated in the cup-shaped housing part GT in such a way that its sorption drying material ZEO can be flowed through in or against the direction of gravity SKR (see FIG. 3) with an air flow LS2 generated by deflecting the air flow LS1 brought about via the air duct LK.
  • the sorption unit SE has at least one lower sieve element or grating element US as the lower, essentially horizontally arranged, air-permeable bottom element and at least one upper sieve element or grating element OS as an upper, substantially horizontally arranged, air-permeable ceiling element at a predefinable height distance H from one another (see in particular FIG 9).
  • the volume of space between the two sieve elements or grid elements US, OS is largely completely filled with the sorption drying material ZEO.
  • cup-shaped housing part GT at least one heating device HZ is provided in cup-shaped housing part GT. It is viewed in the flow direction DSR of the sorption container SB, in particular before the sorption unit SE with the reversibly dehydratable sorption drying material ZEO.
  • Heater HZ is positioned in a lower cavity UH of the cup-shaped housing part GT between the bottom part BOT and the sorption SE for collecting inflowing air LS1 from the air duct LK.
  • the inlet opening EO is provided for the air duct LK.
  • the outlet opening AO is provided for the outlet element OFF.
  • a heat-resistant material in particular metal sheet, preferably stainless steel or a stainless steel alloy is used.
  • the cover part DEL closes the pot-shaped housing part GT largely hermetically.
  • the peripheral outer edge of the cover part DEL is connected to the upper edge of the cup-shaped housing part GT only by a mechanical connection, in particular by a forming, joining, latching, clamping, in particular by a beaded connection, or clinch connection, which production technology is simple and ensures a permanently heat-resistant and tight connection.
  • the pot-shaped housing part GT has one or more side walls SW1, SW2 (see FIG. 5), which run substantially vertically. It has an outer contour shape, which essentially corresponds to the inner contour shape of a mounting area EBR provided for it, in particular in the floor assembly BG (see FIG. 16).
  • the two adjoining side walls SW1, SW2 have outer surfaces that are substantially perpendicular to each other.
  • At least one side wall such as SW2 has at least one shape, such as the indentation AF (see FIG. 3), which is formed essentially complementary to a shape on the rear wall and / or side wall of the bottom assembly BG.
  • the sorbent tank SB is provided in a rear corner area EBR between the rear wall RW and an adjacent side wall SW of the dishwasher GS in an exposed area of the floor assembly BG below the floor BO.
  • the pot-shaped housing part GT has at least one passage opening for at least one electrical contact element, in particular two here
  • a drip protection plate TSB is attached at least over its extension for additional security.
  • the drip protection plate TSB has a drainage slope. Through this drip plate is largely avoided that moisture or liquid from the interior of the washing container, for. by a possibly remaining in the event of a fault edge gap between the inner edge of the passage opening DG and the base SO and / or connecting piece AKT of the coupling components SO, OFF despite sealing element DU or in any other way such. may come into contact with the electrical contact elements by a leak in the bottom BO or in a line of the liquid circulation system with the circulation pump UWP. This cover is therefore for electrical safety.
  • FIG. 4 shows, on the basis of a schematic and perspective exploded view, the various components of the sorption container SB in the disassembled state.
  • the components of the sorption container SB are arranged one above the other in several vertical planes as viewed in the vertical direction. This stacked from bottom to top in the vertical direction construction structure of the sorbent SB is in particular in the sectional view of Figure 9 and in the cut
  • FIG. 10 Perspective view of Figure 10 illustrates.
  • the sorption SB has the bottom, lower cavity UH, for collecting incoming air from the approximately horizontally incoming inlet nozzle ES.
  • a slotted sheet SK which serves as a flow conditioning agent for a pipe coil heater HZ arranged above it.
  • the slotted sheet SK sits on an all around in the interior of the sorbent SB circumferential support edge. This support edge has over the inner bottom of the sorbent SB a predetermined height distance to form the lower cavity UH.
  • the slotted sheet SK preferably has one or more clamping parts in order to jam it laterally or laterally with a part surface of at least one inner wall of the sorption container SB.
  • this slot SL which follow substantially the course of the Windungsverlauf arranged over the slotted sheet SK tube coil heater.
  • the slots or passages SL of the slotted plate SK are larger, in particular, at those locations at which the air flow which is diverted into the sorption container SB with a substantially horizontally entering air flow LS1 into the substantially vertical throughflow direction DSR of the sorption container SB has a lower velocity wider or wider than at those locations where it has a greater velocity in the flow direction DSR of the sorbent tank SB.
  • Equalization of the local flow cross-sectional profile of the air flow is understood here to mean that essentially the same volume of air passes at approximately the same flow rate at each entry point of a flow area of the sorption unit.
  • the coil heater RZ is with a given height clearance in
  • it can be held at a height distance above the passages SL by means of a plurality of sheet metal parts BT, which are web-like.
  • These sheet metal parts BT in this case preferably support the coil heater RZ in its course alternately once from below and once from above.
  • a reliable Lankêt congress the pipe coil heater HZ on the slotted sheet SK allows.
  • distortions of the slot plate SK which could occur under the heat of the coil heater HZ, largely avoided.
  • the coil heater HZ follows a free space ZR (see FIGS.
  • This sorption unit SE has on the input side the lower screen element or grid element US. At a height distance H of this screen element or grid element US, the output side, upper screen element or grid element OS is provided.
  • the two sieve elements US, OS are provided on the inner walls of the sorption container sections or all around support edges to position the screen elements US, OS in their associated altitude and hold.
  • the two screen elements US, OS are preferably arranged parallel to each other in this predetermined height distance H.
  • the sorption drying material ZEO is filled in such a way that the volume between the two sieve elements US, OS is largely completely filled.
  • the input-side screen element US and the output side screen element OS relative to the vertical center axis of the sorbent SB or based on the flow direction DSR in substantially horizontal planes of position above one another with the predetermined height distance H from each other.
  • the sorption unit SE is formed by a filling volume of sorption drying material ZEO between a lower, substantially horizontally arranged sieve element US and an upper, substantially horizontally arranged sieve element OS, wherein these are separated by the height direction, in particular the direction of flow DSR, the sorption container SB extending side walls are connected to each other as the outer shell of the sorption and are enclosed by these around.
  • the sorption SE is thus formed sleeve-shaped or tubular.
  • the sorption drying material ZEO is mounted on the lower sieve element US and is held in position by it as well as the outer walls or the inner housing IG of the sorption container.
  • the upper cavity OH is provided above the sorption unit SE for collecting outflowing air.
  • This outflowing air LS2 is led through the outlet AO of the base nozzle STE into the blow-off nozzle ATK, from where it is blown out into the interior of the washing container SPB.
  • the sorption drying material ZEO fills a bulk volume between the lower, approximately horizontally arranged sieve element US and the upper, approximately horizontally arranged sieve element such that the flow inlet cross-sectional area SDF and a flow exit cross-sectional area SAF substantially perpendicular to the flow direction DSR has substantially vertical Direction runs.
  • the lower sieve element US, the upper sieve element OS and the sorption drying material ZEO interposed therebetween each have mutually congruent penetration surfaces for the air LS2 flowing through. This largely ensures that at any point in the volume of the sorption unit SE whose sorption drying material can be subjected to approximately the same volume flow.
  • the sorption drying material may be provided again after each desorption with approximately the same material properties as in the original starting state for the next sorption drying operation of a subsequent dishwashing program. In the sorption thus a uniform moisture absorption from the moist air to be dried and thus an optimal utilization of the sorption provided in the sorption unit SE sorption drying material ZEO is possible.
  • Sorption unit SE can be heated largely uniformly during the desorption process.
  • the slotted sheet ensures a largely uniform local distribution of the heated air volume flow over the inlet cross-sectional area SDF of the sorption unit SE.
  • the slotted sheet SK it may also be expedient to provide a heating device outside the sorption container SB in the connection section between the fan unit LT and the inlet opening EO of the sorbent container SB in the air duct LK. Since the passage cross-sectional area of this tubular connecting portion VA is smaller than the average cross-sectional area of the sorbing tank SB for an air flow, the air flow LS1 before it enters the sorption SB can be heated in advance largely uniformly for the desorption process. Then, if necessary, the slotted sheet SK completely eliminated.
  • the heating of the air takes place by means of a heating device in the sorption SB
  • Sorption drying material ZEO behind the inlet cross-sectional area SDF of the lower wire element US at each point about the same air flow rate can be flowed through.
  • Dehumidification of the air flowing LS1 is involved.
  • the air flowing through LS2 is heated by the heater HZ, brought out of all sorption drying material in the space between the two screen elements US, OS stored water again, so that at all points within this volume volume the Sorption drying material ZEO substantially completely dried and thus regenerated can be made available for a subsequent drying process.
  • the flow cross-sectional area SDF of the sorption unit SE in the interior of the sorption container SB is here larger in the embodiment than the average cross-sectional area of the end-side inlet nozzle ES of the air duct LK or of the tubular connection portion VA.
  • the flow cross-sectional area SDF of the sorption drying material is preferably between 2 and 40 times, in particular between 4 and 30 times, preferably between 5 and 25 times, larger than the average cross-sectional area of the inlet connection ES of the air duct LK, with which this opens into the inlet opening EO of the sorbent SB.
  • DSR flow direction of flow DSR of the
  • Sorption container considered SB is provided in the lower cavity UH at least one flow conditioning element SK with height distance in front of the heating device HZ.
  • As Strömungskondition istselement SK a slotted sheet or perforated plate is provided here in the embodiment.
  • the slits SL in the slotted sheet SK essentially follow the winding course of a
  • Air passages, in particular slots SL, in the flow conditioning element SK are at those locations at which the airflow LS1 entering the sorption tank SB has a lower velocity after being deflected in the flow direction DSR of the sorbent tank SB, preferably larger than those formed at those locations where the entering into the sorbent SB air flow LS1 after their
  • Deflection in the flow direction DSR of the sorbent SB has a greater speed in order to achieve a homogenization of the air flow, with which the tube heater HZ is flowed around.
  • the sorption drying system has the following specific flow conditions in the region of the sorption container:
  • the air duct is coupled to the sorption container in such a way that the incoming air flow into the sorption container opens with a, in particular substantially horizontal, inflow direction and into one of them different, here in particular Transits substantially vertical, flow direction, with which it flows through the interior of the sorbent SB.
  • the outlet flow direction of the air flow emerging from the sorption container preferably corresponds substantially to the approximately vertical throughflow direction.
  • the inlet-side pipe section of the air duct opens into the sorption such that its direction of flow in the forced flow direction of the
  • Sorption in particular between 45 ° and 135 °, preferably by about 90 °, is deflected from its, here approximately horizontal, inflow direction.
  • at least one fan unit is inserted into the inlet-side pipe section of the air guide channel for generating a forced air flow in the direction of at least one inlet opening of the sorption container in front of the sorption container.
  • the sorption container is designed with such a geometry that its sorption unit with the sorption drying material is forced through air substantially in or counter to the direction of gravity, which is guided via the air duct from the rinsing container into the sorption container.
  • the sorption unit of the sorption container may preferably have at least one lower, essentially horizontally arranged sieve element or grid element and at least one upper, substantially horizontally arranged sieve element or grid element at a predeterminable height distance from one another, wherein the volume of space between the two sieve elements or grid elements with the sorption drying material is substantially complete is filled.
  • the inlet cross-sectional area and the outlet cross-sectional area of the sorption unit of the sorption container can be chosen in particular substantially equal.
  • the inlet cross-sectional area and the outlet cross-sectional area of the sorption unit of the sorption container can furthermore advantageously be arranged essentially congruent to one another.
  • the sorption container viewed in its forced flow direction, advantageously has at least one essentially vertical stratification of a lower cavity and a sorption unit arranged above it and arranged downstream in the flow direction. It preferably has at least one heating device in its lower cavity.
  • the sorption container may expediently also have at least one upper cavity for collecting outflowing air via its sorption unit.
  • the sorption drying material expediently fills a bulk volume in the sorption unit of the sorption container in such a way that a flow inlet cross-sectional area arranged essentially vertically to the flow direction and a flow outlet cross-sectional area largely parallel to it, ie in each case in a substantially horizontal positional plane, is formed.
  • the sorption container preferably has at least one outflow opening at its upper cover part, which is connected via a passage opening in the bottom of the washing container to its interior by means of at least one outflow component.
  • the sorption container can be designed, in particular, as a tube arranged substantially vertically, in particular as a cylinder arranged substantially vertically, or as an upright sleeve.
  • an upright sorption column can be provided, in particular with a heating device and a downstream sorption unit, for the sorption drying material of which a through-flow direction against the direction of gravity with air is predetermined.
  • a relatively compact embodiment variant for the sorption container is advantageously made possible, which requires only relatively little space.
  • the sorption drying material is preferably an aluminum and / or silica containing, reversible dehydratable material, silica gel, and / or zeolite, in particular zeolite type A, X, Y alone or in any combination.
  • the sorption drying material is expediently provided in the sorption container in the form of a granular solid or granules having a multiplicity of particle bodies with a grain size of essentially between 1 and 6 mm, in particular between 2.4 and 4.8 mm, as the bed, the bed height H of the Particle body at least five times their grain size corresponds.
  • the sorption drying material present as a granular solid or granulate expediently exists in the direction of gravity in the sorption container with a bulk height H which corresponds essentially to 5- to 40-fold, in particular 10-to 15-fold, the particle size of the granular solid or granules.
  • the bed height of the sorption drying material is preferably selected substantially between 1, 5 and 25 cm, in particular between 2 and 8 cm, preferably between 4 and 6 cm.
  • the granular solid or granules may preferably be formed from a plurality of substantially spherical particle bodies.
  • the sorption drying material ZEO which is in the form of a granular solid or granulate, advantageously has an average bulk density of at least 500 kg / m 3 , in particular substantially between 500 and 800 kg / m 3 , in particular between 600 and 700 kg / m 3 , in particular between 630 to 650 kg / m 3 , particularly preferably from about 640 kg / m 3 , on.
  • the reversibly dehydratable sorption drying material for absorbing a moisture amount transported in the air flow is expediently provided with such a weight amount that the amount of moisture absorbed by the sorption drying material is less than an amount of liquid applied to the ware, in particular a quantity of liquid applied in the final rinse step.
  • the reversibly dehydratable sorption drying material is provided with such a weight amount that this is sufficient to absorb a moisture amount that corresponds substantially to a wetting amount with which the ware is wetted after the end of a final rinse step.
  • the amount of absorbed water preferably corresponds to between 4 and 25%, in particular between 5 and 15%, of the amount of liquid applied to the items to be washed.
  • the sorption drying material in particular has pores, preferably with a
  • Size substantially between 1 and 12 angstroms, in particular between 2 and 10, preferably between 3 and 8 angstroms, on.
  • a sorption drying material is provided, which is desorbable at a temperature substantially in the range between 80 ° and 450 0 C, in particular between 220 ° and 250 0 C.
  • the air duct, the sorption, and / or one or more additional flow influencing elements are suitably designed such that by the sorption drying material for its sorption and / or desorption an air flow with a volume flow substantially between 2 and 15 l / sec, in particular between 4 and 7 l / sec is effected.
  • the sorption drying material is assigned at least one heating device with which an equivalent heating power between 250 and 2500 W, in particular between 1000 and 1800 W, preferably between 1200 and 1500 W, can be provided for heating the sorption drying material for its desorption.
  • the ratio of heating power of at least one heating device, which is assigned to the Sorptionstrocknungsmaterial for its desorption, and air flow rate of the air flow flowing through the Sorptionstrocknungsmaterial between 100 and 1250 W sec / l, in particular between 100 and 450 W sec / l, preferably between 200 and 230 W sec / l, selected.
  • the sorption container for the sorption drying material is preferably a
  • Passage cross-sectional area substantially between 80 and 800 cm 2 , in particular between 150 and 500 cm 2 , provided.
  • the dumping height of the sorption drying material is expediently substantially constant over the inlet cross-sectional area SDF of the sorption container SB.
  • the sorption drying material in the sorption container for absorbing an amount of water substantially between 150 and 400 ml, in particular between 200 and 300 ml.
  • At least one thermal overheating protection device is provided for at least one component of the sorption drying system TS.
  • the component may preferably be formed by a component of the sorption container SB.
  • the thermal overheating protection device can be mounted on the outside of the sorption container SB.
  • At least one electrical temperature protection unit TSI is provided here as the thermal overheating protection device in the exemplary embodiment (see FIGS. 4, 6, 8, 9). It is assigned here in the embodiment of the heating device HZ, which is housed in the sorption SB.
  • the electrical temperature protection unit TSI is provided in the embodiment of Figures 4, 6, 8 and 9 in an outside indentation EBU on the inner housing IG of the sorbent SB in the high-altitude range of the heating device HZ. It comprises at least one electrical thermal switch TSA and / or at least one fuse SSI (see FIG. 17).
  • the electrical thermal switch TSA and / or the fuse SSI of the electrical temperature protection unit TSI are each, preferably in series, inserted into at least one power supply line UB1, UB2 of the heating device HZ (see Figure 8).
  • At least one control device HE, ZE (see FIG. 16) with a monitoring logic which in particular interrupts the energy supply to the heating device HZ in the event of a fault.
  • An error case is formed, for example, by the exceeding of an upper temperature limit, for example, on the sorption container or in the rinsing container.
  • an upper temperature limit for example, on the sorption container or in the rinsing container.
  • the largely freely suspended suspension or a corresponding free installation of the sorption container, in particular below the bottom BO of the washing container SPB can also be used.
  • the thermal overheating protection measure may further comprise a mounting of the sorption container SB such that the sorption container has a predetermined minimum gap distance LSP with respect to adjacent components and / or parts of a base assembly BG.
  • At least one outer housing AG may be provided in addition to the inner housing IG of the sorption container SB, in addition to or independently of the above measures, at least in the region of the sorption unit SE of the sorption container SB. Between the inner housing IG and the outer housing AG while an air gap clearance LS is present as a thermal insulation layer.
  • the housing of the sorption container at least around the area of the sorption with the Sorptionstrocknungsmaterial around the outside and / or inside multi-walled, in particular double-walled be formed.
  • the sorption unit may be surrounded inside the sorption container and / or outside the sorption container at least in the area of the sorption unit with at least one additional heat insulation element.
  • the heating device here in particular the coil heater HZ of FIGS. 4, 7, 8, 9, has two connection poles AP1, AP2, which are guided through corresponding passages in the housing of the washing container SB to the outside.
  • Each terminal pin AP1, AP2 is preferably connected in series with an overheat protection element.
  • the overheat protection elements are combined in the temperature fuse unit TSI, which is arranged on the outside of the housing of the sorption container SB in the vicinity of the two pole pins AP1, AP2.
  • FIG. 17 shows the overheating protection circuit for the coil heater HZ of FIG. 8.
  • the first bypass cable UB1 is attached to the first, rigid pole pin AP1 by means of a welded connection SWE1.
  • the second, rigid pole pin AP2 by means of a welded joint SWE2 is the second Bypass line UB2 attached.
  • the bridging line UB2 is electrically contacted with the thermal switch TSA.
  • the bridging line UB1 is electrically connected to the thermoelectric fuse SSI via a plug contact SV3.
  • a first power supply line SZL1 is connected to the outgoing terminal lug AF1 of the fuse element SSI via a plug connection SV1.
  • a second power supply line SZL2 is connected via a plug connection SV2 to the outgoing connection lug AF2 of the thermal switch element TSA.
  • the second power supply line SZL2 forms a neutral, while the first power supply line SZL1 can be a "live phase.”
  • the thermal switch TSA opens as soon as a first upper limit for the temperature of the coil heater HZ is exceeded If, however, a critical upper limit of the upper limit for the coil heater HZ is reached, the SSI fuse melts and the circuit for the coil heater HZ is permanently interrupted
  • the temperature-protection device TSI is in largely intimate, heat-conducting contact with the inner housing IG of the sorption container and can be triggered separately from each other if certain, specifically assigned, upper temperature limits are exceeded the.
  • the outlet connection AKT which is connected to the outlet opening AO in the base SO of the sorbent container SB, passes through the passage opening DG in the bottom BO of the washing container, preferably in a corner region EBR of the washing container SPB, that outside of the spray arm SA swept surface of revolution is located.
  • the outlet nozzle AKT of the outlet device AUS protrudes from the bottom BO to a position in the interior of the washing container SPB, which lies outside the area of rotation detected by the lower spray arm SA.
  • the exhaust gas nozzle or the outlet connection AKT is covered or slipped over along its upper end section by a splash guard SH.
  • the splash guard SH slips over the outflow nozzle AKT umbrella-like or mushroom-like. This is viewed from above (see Figure 12) on the top and side wall side completely closed; In particular, it is also complete on its underside in a region facing the spray arm SA closed.
  • the outlet device or the outlet element AUS is constructed in such a way that it is possible to blow out as much air as possible from its sorbent container into the interior of the rinsing container via its blow-off nozzle piece AKT and at the same time through its splash guard SH to cover it in such a way that it can vent through the air to provide that penetration of wash liquor from the washing container into the interior of the sorption container is largely avoided.
  • the splash guard SH has here in the embodiment in the first approximation to a semi-circular cylindrical geometry shape. It is shown schematically in the figure 12 viewed from above. On its upper side, in transition zones GF, URA, it has convexly curved flattenings GF (see FIG. 13) between its largely planiform upper side and its substantially vertically downwardly projecting side walls (viewed from the inside outwards). If a spray jet, for example from the lower spray arm SA, meets these edge zones flattened or arched transition zones GF, URA, then this film pours largely over the entire area over the splash guard SH and cools it during the desorption process. As a result, undesirable material stresses or material damage to components in the interior of the washing due to overheating are largely avoided.
  • the splash guard SH is arranged with respect to the outlet connection AKT with a free height distance to form a free space or cavity. To avoid liquid when spraying with the lower spray arm SA through the
  • Outlet opening of the outflow AKT can enter the sorption SB, is a lower edge zone UR of the semicircular cylinder-section-like side wall of the splash guard SH inwardly curved in the direction of the outflow AKT or curved or bent. This can be seen in FIG.
  • a spray-water deflecting element or shielding element PB in particular a baffle plate, which revolves radially outwards and is projecting radially outward, is provided in the region of the upper edge of the outflow nozzle AKT.
  • a spray-water deflecting element or shielding element PB in particular a baffle plate, which revolves radially outwards and is projecting radially outward, is provided. This is radially outward into the gap or gap between the circular cylindrical outflow AKT and the inner wall of the splash guard SH from.
  • the outwardly projecting shielding element PB is supported in the embodiment of Figure 13 at individual peripheral points of its outer edge by means of web elements SET against the inner wall of the circumferential in the form of a sleeve or ring segment portion outer wall of the splash guard SH.
  • FIG 14 shows the splash guard SH viewed from below together with the outflow AKT.
  • the shielding element PB shields the outlet opening of the outflow branch AKT as a laterally or laterally projecting edge or web substantially all around.
  • the shielding element PB closes off the underside of the splash guard SH in the region of the rectilinear side wall facing the spray arm SA. Only in the semicircular curved, de, spray arm facing away portion of the splash guard SH between the shielding PB and the radially offset running, outside concentrically arranged side wall of the splash guard SH a gap clearance LAO is released through which the air from the outflow AKT into the interior of the SPB can flow out.
  • the shielding element PB shields the outlet opening of the outflow branch AKT as a laterally or laterally projecting edge or web substantially all around.
  • the shielding element PB closes off the underside of the splash guard SH in the region of the rectilinear side wall facing the spray arm SA. Only in the semicircular curved, de
  • the gap clearance LAO is formed substantially sickle-like.
  • the air flow LS2 is thereby forced to the deflection ALS, which deflects it from its vertical upward discharge direction down to the lower edge UR of the splash guard AH out, where they can emerge only through the crescent-shaped, partial circular section-shaped gap clearance LAO in the lower part of the splash guard SH ,
  • the outflow AKT is expediently with such a height HO relative to the bottom BO from that its upper edge is higher than the level of a scheduled for a rinsing cycle target Spülbad- total amount or foam amount.
  • the outflow element AUS which is mounted on the output side of the sorption container SB and projects into the interior of the rinse container SPB, is thus expediently designed such that the air flow LS2 emerging from it is directed away from the spray arm SA. Specifically, the outflowing airflow LS2 becomes a rearward corner area between the rear wall RW and the adjacent one
  • At least one outflow device AUS which is connected to at least one outflow opening AO of the sorbent container SB, arranged in the interior of the washing container SPB that air blown out of her LS2 is largely directed away from at least one accommodated in the washing container SPB spraying SA.
  • the outflow device AUS is arranged outside the working range of the spray device SA.
  • the spraying device may e.g. be a rotating spray arm SA.
  • the outflow device AUS is preferably provided in a rear corner region EBR between the rear wall RW and an adjacent side wall SW of the washing container SPB.
  • the outflow device AUS has a blow-out opening ABO with a height clearance HO above the bottom BO of the rinse container SPB, which is higher than the level of a set rinse bath total amount provided for a rinse operation.
  • the outflow device AUS comprises a discharge connection AKT and a splash protection cover SH.
  • the splash guard SH has a geometry which has the blow-out opening ABO of the outflow nozzle AKT.
  • the splash guard SH is slipped over the outflow AKT such that a downwardly flowing forced flow path ALS can be impressed by the outflow port AKT from the sorption SB with an ascending flow direction high air after its exit from the exhaust port ABO of the outflow.
  • the above the bottom BO of the washing container SPB upwardly projecting outflow AKT is coupled to the connection piece STE on the cover part DEL of the arranged under the bottom BO sorption SB.
  • the splash guard SH is in her
  • the splash guard SH covers the blow-off opening ABO of the outlet connection AKT with an upper free space.
  • the outlet connection AKT points In this case, an upper, outwardly curved edge or ring encircling collar KR.
  • the splash guard SH envelopes an upper end portion of the outflow AKT such that between its inner wall and the outer wall of the outflow AKT a clearance SPF is formed.
  • the gap SPF between the splash guard SH and the outflow AKT is designed such that an Heilausströmweg ALS is provided from the outflow AKT, of the
  • Sprayer SA is directed away in the washing container SB.
  • a projecting into the gap SPF SPITZ Spritzwasserabweiselement is provided.
  • a lower edge zone UR of the splash guard SH is curved inwards.
  • the splash guard SH has such a rounded outer surface, that it can pour an incident spray of the spray SA to film over its surface. This serves to cool the outlet device OFF.
  • FIG. 15 shows a schematic longitudinal sectional illustration of the fixing of the inlet-side end-face end section ET of the air-guiding channel LK in the region of the outlet opening ALA in the side wall SW of the washing container SPB of FIG. 2.
  • the front-side end section ET of the air-guiding channel LK projects into the interior of the washing container SPB in such a way that in that a collar edge protruding vertically against the side wall SW is formed.
  • This has an internal thread SG.
  • an annular inlet element or fixing element IM is screwed with an external thread. It thus acts as a fixing element for holding the end portion ET.
  • This annular fixing element has a toroidal, round receiving chamber for a sealing element DI2.
  • This sealing element DI2 seals an annular gap between the outer edge of the inlet-side, end-side end section ET of the air duct LK and the fixing element.
  • the fixing element is formed here in the exemplary embodiment in particular by a union nut-like screw ring, which is bolted to the inlet side, front end portion ET of the air duct LK.
  • the annular fixing element or inlet element IM a central passage MD can be sucked through the air LU from the interior of the washing container SPB in the air duct.
  • At least one rib-shaped engagement protection in / or in front of the inlet opening MD of the inlet-side tube section ET of the air-guiding channel LK, which has freely continuous gaps between its engagement ribs RIP for the inflow of air LU from the rinsing container.
  • these ribs RIP are indicated by dash-dotted lines.
  • These ribs can also serve as a screwing aid for screwing in the air inlet element IM in the internal thread of the end portion of the air duct.
  • a sorption drying system which has a plurality of sorption units or sorption columns with associated heating devices in a common sorption container or in a plurality of separate sorption containers.
  • These sorption columns or their sorption containers can be connected in series as well as coupled to one another as parallel strands of the sorption drying system.
  • These multiple serially or in parallel arranged sorption columns may conveniently be connected via one or more air ducts to one or more outlet openings of the washing container for drawing in air from the washing container and / or with blowing outlets of one or more outlet devices for blowing air into the washing container.
  • FIG. 16 shows a schematic top view of the floor assembly BG.
  • the fan unit LT the sorption tank SB, the circulation pump UWP, etc.
  • it comprises a main control unit HE for controlling and checking it.
  • the heating device HZ of the sorption container SB is also regulated for the respective desorption process by means of at least one control device. This is formed here in the embodiment by an additional control device ZE. It serves to interrupt or connect the power supply line SZL to the heating device HZ as required.
  • the additional control device ZE is controlled by the main control unit HE via a bus line BUL. From the main controller HE is a power supply line SVL to
  • Additional control device ZE out It also controls the fan unit LT via a control line SLL.
  • the power supply line of the fan unit LT can also be integrated in the control line SLL.
  • At least one temperature sensor TSE (see FIG. 2), which supplies measurement signals to the main control device which represent the temperature in the interior of the rinsing container, is also connected to the main control device HE via a signal line.
  • the temperature sensor TSE is suspended between stiffening ribs VR (see FIG. 3) in the intermediate space between the two legs AU, AB of the inlet-side pipe section RA1 of the air duct LK. In this case, it is brought into contact with the side wall SW of the washing container SPB.
  • the main control unit HE simultaneously activates the additional control device ZE via the bus line BUL in such a way that an electrical voltage is applied via the current connection line SZL to the pole pins AP1, AP2 of the heating device HZ, if a desorption process is desired.
  • a certain predetermined critical upper temperature limit has been reached in the interior of the washing container SPB during the desorption process, which causes the main controller HE, e.g.
  • the temperature sensor TSE can determine via the measurement signals of the temperature sensor TSE, they can give the additional control device ZE via the bus line BUL the voltage to take on the power supply line SZL and thereby the heating device HZ and possibly simultaneously or by a predetermined period of time offset and the fan unit LT, ie the complete sorption drying device TV, off. In this way, the
  • the main control device HE can also instruct the additional control device ZE to switch off the heating device in another error case.
  • another error case may be, for example, a fault or interruption of the communication link on the data bus BUL.
  • the auxiliary control device ZE can also switch off the heating device HE and / or the fan unit LT independently or independently, ie independently of the main control device HE, if an error occurs during the respective desorption process. If necessary, it may be appropriate for an operator of the
  • Dishwasher to provide the option to activate or deactivate the sorption drying system TS on the activation or deactivation of a dedicated program button or the appropriate selection of a program menu.
  • This is schematically illustrated in FIG. 16 in that a program key or program menu item PG1 is shown, which via a control line SL1 by means of control signals SS1 of the control logic HE corresponding activation or deactivation signals for switching on and off of the Sorptionstrocknungssystems TE.
  • a first selection key for selecting a program variant "energy” or "sorption operation” can be provided in the control panel of the dishwasher.
  • This program focuses on saving energy. This is achieved in that the rinse process is not heated at all by means of a continuous flow heater and the drying of the items to be washed, in particular of the dishes, is effected solely by means of the sorption drying system TS.
  • another button “Drying capacity” may be provided in the control panel of the dishwasher, which increases the fan run time of the fan unit. As a result, an improved drying of all crockery parts can be achieved.
  • a further key “program run time” may be provided If the sorption drying system is switched on, the program runtime can be reduced compared to conventional drying systems (without sorption drying) Additionally or independently thereof, by increasing the spray pressure by increasing the engine speed of the recirculation pump, the running time during cleaning can be further reduced by means of a continuous flow heater in the dishwashing sump of the dishwashing machine the drying time will be further shortened.
  • an operating button with the function "influencing the cleaning performance” can be provided. that during the pre-rinse and / or cleaning process at the same time the desorption process is started and thereby hot air, which is loaded with a leaked from the Sorptionstrocknungsmaterial amount of water enters the washing, heating energy can be saved for heating a desired total flushing liquid volume.

Landscapes

  • Washing And Drying Of Tableware (AREA)

Abstract

L'invention concerne un système de séchage par sorption (TS) d'un lave-vaisselle (GS) comprenant un moins un récipient de sorption (SB) renfermant un matériau de séchage par sorption déhydrogénable réversible (ZEO), qui est connecté avec un récipient de rinçage (SPB), via au moins un canal guide d'air (LK), pour le passage d'un courant d'air (LS2). L'invention est caractérisée en ce qu'au moins une unité de sorption (SE) renfermant un matériau de séchage par sorption (ZEO) est placée dans le récipient de sorption (SB), de telle façon que l'unité de sorption (SE) renfermant le matériau de séchage par sorption (ZEO) soit traversée par le courant d'air (LS2) sensiblement dans le sens de la gravité ou à l'encontre du sens de la gravité.
EP09781153A 2008-07-28 2009-07-28 Lave-vaisselle présentant un système de séchage par sorption Withdrawn EP2306882A2 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE102008040789A DE102008040789A1 (de) 2008-07-28 2008-07-28 Geschirrspülmaschine mit Sorptionstrocknungsvorrichtung
DE200810039900 DE102008039900A1 (de) 2008-08-27 2008-08-27 Geschirrspülmaschine mit Sorptionstrockenvorrichtung
DE102008043581A DE102008043581A1 (de) 2008-11-07 2008-11-07 Geschirrspülmaschine mit Sorptionstrocknungssystem
PCT/EP2009/059699 WO2010012703A2 (fr) 2008-07-28 2009-07-28 Lave-vaisselle présentant un système de séchage par sorption

Publications (1)

Publication Number Publication Date
EP2306882A2 true EP2306882A2 (fr) 2011-04-13

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EP09781142.6A Active EP2323531B1 (fr) 2008-07-28 2009-07-27 Lave-vaisselle à système de séchage par sorption
EP09781153A Withdrawn EP2306882A2 (fr) 2008-07-28 2009-07-28 Lave-vaisselle présentant un système de séchage par sorption

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EP09781142.6A Active EP2323531B1 (fr) 2008-07-28 2009-07-27 Lave-vaisselle à système de séchage par sorption

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EP (2) EP2323531B1 (fr)
JP (2) JP2011528968A (fr)
CN (2) CN102131438B (fr)
AU (2) AU2009275994B2 (fr)
ES (1) ES2526424T3 (fr)
NZ (2) NZ590678A (fr)
PL (1) PL2323531T3 (fr)
WO (2) WO2010012696A2 (fr)

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US20110114141A1 (en) 2011-05-19
EP2323531B1 (fr) 2014-11-26
CN102131438B (zh) 2014-11-12
AU2009276001B2 (en) 2015-04-09
WO2010012703A2 (fr) 2010-02-04
EP2323531A2 (fr) 2011-05-25
AU2009276001A1 (en) 2010-02-04
ES2526424T3 (es) 2015-01-12
JP2011528972A (ja) 2011-12-01
AU2009275994B2 (en) 2014-10-02
AU2009275994A1 (en) 2010-02-04
NZ590678A (en) 2013-10-25
WO2010012696A3 (fr) 2010-06-03
US8961705B2 (en) 2015-02-24
NZ590110A (en) 2012-12-21
CN102131438A (zh) 2011-07-20
PL2323531T3 (pl) 2015-03-31
JP2011528968A (ja) 2011-12-01
WO2010012703A3 (fr) 2010-05-20
CN102105094A (zh) 2011-06-22
WO2010012696A2 (fr) 2010-02-04
US9661981B2 (en) 2017-05-30

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